These elf ears are made of Latex rubber and has the earrings already attached or pierced. 
You can use powder foundation, blush, or eyeshadow to change the color to suit your needs. 
These Ear enhancements fits most ears, it is easy to wear and can be hung directly on the ear. If it feels a little loose when wearing the ear cuffs, you can use eyelash glue at the base of the ear to secure it. 
These ears are 4.9 x 1.8 inches. This measures only the length of the latex ear it's self and does not include the length of the added on earrings, chains, or cuffs.